Transverse-Stress Compensated Methane Sensor Based on Long-Period Grating in Photonic Crystal Fiber

Hai Liu; Yanzeng Zhang; Cong Chen; Bingbing Bai; Qiyuan Shao; Haoran Wang; Wen Zhang; Cancan Chen; Shoufeng Tang

doi:10.1109/ACCESS.2019.2951133

IEEE Access (Jan 2019)

Transverse-Stress Compensated Methane Sensor Based on Long-Period Grating in Photonic Crystal Fiber

Hai Liu,
Yanzeng Zhang,
Cong Chen,
Bingbing Bai,
Qiyuan Shao,
Haoran Wang,
Wen Zhang,
Cancan Chen,
Shoufeng Tang

Affiliations

Hai Liu: School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Yanzeng Zhang: School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Cong Chen: School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Bingbing Bai: School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Qiyuan Shao: School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Haoran Wang: School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Wen Zhang: ORCiD; School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Cancan Chen: School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
Shoufeng Tang: ORCiD; School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China

DOI: https://doi.org/10.1109/ACCESS.2019.2951133
Journal volume & issue: Vol. 7
pp. 175522 – 175530

Abstract

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A high-sensitive and transverse-stress compensated methane sensor based on a photonic crystal fiber long-period grating (PCF-LPG) is proposed. The outermost layer of the PCF consists of six large sideholes, five of which are coated with methane-sensitive compound film to achieve methane measurement. Such side-hole structure is helpful for gas sensitive reaction, but not conducive to avoiding external stress interference. Therefore, the last large hole is plated with silver layer to eliminate the cross-sensitivity effect through adding a Surface Plasmon Resonance (SPR) sensing channel with the consideration of photo-elastic effect and material deformation. Results show that the methane gas sensitivity can reach up to 6.39nm/% with the transverse-stress compensation. The sensor is very simple and effective, which provides a new method of gas measurement combined with different actual conditions.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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